I started lurking on this site about a year ago through the WW1 forum, and have started gradually started collecting TR material as well. With WW1 items there are a lot less fakes and I didn't have to be quite as careful as a person collecting TR items does. But now I'm hooked on the TR, and I'd like to properly educate myself so that I don't have to raise my hand urgently to get a pass or fail on the items I'm interested in from our more senior and knowledgeable members. Could anyone recommend decent and comprehensive reference books that are also *somewhat* reasonably priced? Is there one book that you've personally found to be really heads above the rest for your particular collecting niche?